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DistanceDecay Method

Calculates the market penetration for ring or drive-time or drive-distance polygons around stores.

Availability: Business Analyst Server.

TaskResultOutput DistanceDecay ( 
    DistanceDecayParameters  Parameters, 
    esriReportFormat         ReportFormat, 
    RenderingParameters      RenderingParameters, 
    TaskOutputType[]         OutputTypes, 
    esriFolderItem           OutputAnalysisItem, 
    esriFolderItem           OutputReportItem 
);

Parameter Description
Parameters Configuration options for analysis. Type DistanceDecayParameters.
ReportFormat This parameter should be null. This parameter is deprecated.
RenderingParameters Configuration options for rendering output when GetMapImage option is specified in the OutputTypes parameter. Type RenderingParameters.
OutputTypes Array of task output options. Options for this method include rendering output image (GetMapImage), creating a feature layer for subsequent analysis (GetFeatureClass), and creating a report (GetReport). Type TaskOutputType[].
OutputAnalysisItem (Optional parameter — can be null).
Configuration options for storing the output feature layer in the repository. This will enable viewing and working with the output result in subsequent tasks. Type esriFolderItem.
OutputReportItem (Optional parameter — can be null).
Configuration options for storing the output report in the repository. This will enable viewing and working with the output result in subsequent tasks. Type esriFolderItem.

Returns

Variable of type TaskResultOutput

Remarks

The DistanceDecay method provides a percentage rating of how well you're reaching your market areas by calculating your market penetration based on either the ring or drive-time or drive-distance trade areas. Either persons or households can be used to calculate market penetration.

Examples

The example below generates a Distance Decay report between a list of stores and customers.

NOTE: In this example customer sales values are not included in the input data so sales data will not appear in the analysis result.

C# 
// Instantiate the BAServerHelper class to access analysis methods
BAServerHelper baServerHelper = new BAServerHelper();
baServerHelper.ActiveDatasetID = "USA_ESRI"; // Optional parameter
baServerHelper.IsFullErrorMessage = true;    // Default is false
 
// You can specify below a domain of your local Business Analyst Server.
//baServerHelper.BAServerDomain = "esri.com";
 
// If a domain name is specified, a local server name in output URLs is replaced with the
// fully-addressable server name so people and machines outside the domain of your local
// Business Analyst Server instance can access these URLs.
 
RenderingParameters imageOptions;
TaskOutputType[] outputOptions;
esriFolderItem outputLayer;
esriFolderItem outputReport;
 
// ========= STEP 1: Create a record set by store addresses
 
RecordSetByAddress[] storeAddresses = new RecordSetByAddress[2];
 
storeAddresses[0] = new RecordSetByAddress();
storeAddresses[0].Name = "location1";
storeAddresses[0].Description = "Downtown Location";
storeAddresses[0].StoreID = "1";
storeAddresses[0].Address = "1401 Kettner Blvd.";
storeAddresses[0].City = "San Diego";
storeAddresses[0].State = "CA";
storeAddresses[0].ZIP = "92101";
 
storeAddresses[1] = new RecordSetByAddress();
storeAddresses[1].Name = "location2";
storeAddresses[1].Description = "Clairemont Location";
storeAddresses[1].StoreID = "2";
storeAddresses[1].Address = "5407 Balboa Ave.";
storeAddresses[1].City = "San Diego";
storeAddresses[1].State = "CA";
storeAddresses[1].ZIP = "92111";
 
TaskResultOutput storeRecordSetResult =
    baServerHelper.CreateRecordSetByAddresses(storeAddresses, esriFolderType.esriFolderStoreLayers);
 
TableData tableData = new TableData();
tableData.RecordSet = storeRecordSetResult.RecordSet;
GeocodeData geocodeData = new GeocodeData();
geocodeData.Table = tableData;
 
// ========= STEP 2: Geocode the record set with stores
 
CustomerStoreSetupByGeocodeTableParameters geocodeParameters = new CustomerStoreSetupByGeocodeTableParameters();
 
// Set specific analysis parameters
geocodeParameters.GeocodeCustomers = false;
geocodeParameters.GeocodeData = geocodeData;
geocodeParameters.NameField = "NAME";
geocodeParameters.StoreIDField = "STORE_ID";
 
// Set other parameters
imageOptions = null;
outputOptions = new TaskOutputType[] { TaskOutputType.GetFeatureClass };
outputLayer = null;
 
TaskResultOutput storeGeocodeResult =
    baServerHelper.CustomerStoreSetupByGeocodeTable(geocodeParameters, imageOptions, outputOptions, outputLayer);
 
PointLayer storeLayer = new PointLayer();
storeLayer.RecordSet = storeGeocodeResult.RecordSet;
 
// ========= STEP 3: Create a record set by customer addresses
 
RecordSetByAddress[] customerAddresses = new RecordSetByAddress[7];
 
customerAddresses[0] = new RecordSetByAddress();
customerAddresses[0].Name = "customer1";
customerAddresses[0].Description = "Ocean Beach Customer";
customerAddresses[0].StoreID = "1";
customerAddresses[0].Address = "5080 Newport Ave.";
customerAddresses[0].City = "San Diego";
customerAddresses[0].State = "CA";
customerAddresses[0].ZIP = "92107";
customerAddresses[0].CustomerID = "1";
 
customerAddresses[1] = new RecordSetByAddress();
customerAddresses[1].Name = "customer2";
customerAddresses[1].Description = "La Jolla Customer";
customerAddresses[1].StoreID = "1";
customerAddresses[1].Address = "1250 Prospect St.";
customerAddresses[1].City = "La Jolla";
customerAddresses[1].State = "CA";
customerAddresses[1].ZIP = "92037";
customerAddresses[1].CustomerID = "2";
 
customerAddresses[2] = new RecordSetByAddress();
customerAddresses[2].Name = "customer3";
customerAddresses[2].Description = "Pacific Beach Customer";
customerAddresses[2].StoreID = "1";
customerAddresses[2].Address = "1762 Garnet Ave.";
customerAddresses[2].City = "San Diego";
customerAddresses[2].State = "CA";
customerAddresses[2].ZIP = "92109";
customerAddresses[2].CustomerID = "3";
 
customerAddresses[3] = new RecordSetByAddress();
customerAddresses[3].Name = "customer4";
customerAddresses[3].Description = "Morena Customer";
customerAddresses[3].StoreID = "2";
customerAddresses[3].Address = "1240 W. Morena Blvd.";
customerAddresses[3].City = "San Diego";
customerAddresses[3].State = "CA";
customerAddresses[3].ZIP = "92111";
customerAddresses[3].CustomerID = "4";
 
customerAddresses[4] = new RecordSetByAddress();
customerAddresses[4].Name = "customer5";
customerAddresses[4].Description = "Clairemont Customer";
customerAddresses[4].StoreID = "2";
customerAddresses[4].Address = "6393 Balboa Ave.";
customerAddresses[4].City = "San Diego";
customerAddresses[4].State = "CA";
customerAddresses[4].ZIP = "92111";
customerAddresses[4].CustomerID = "5";
 
customerAddresses[5] = new RecordSetByAddress();
customerAddresses[5].Name = "customer6";
customerAddresses[5].Description = "Bird Rock Customer";
customerAddresses[5].StoreID = "2";
customerAddresses[5].Address = "5735 La Jolla Blvd.";
customerAddresses[5].City = "La Jolla";
customerAddresses[5].State = "CA";
customerAddresses[5].ZIP = "92037";
customerAddresses[5].CustomerID = "6";
 
customerAddresses[6] = new RecordSetByAddress();
customerAddresses[6].Name = "customer7";
customerAddresses[6].Description = "University City Customer";
customerAddresses[6].StoreID = "1";
customerAddresses[6].Address = "3254 Governor Dr.";
customerAddresses[6].City = "San Diego";
customerAddresses[6].State = "CA";
customerAddresses[6].ZIP = "92122";
customerAddresses[6].CustomerID = "7";
 
TaskResultOutput customerRecordSetResult =
    baServerHelper.CreateRecordSetByAddresses(customerAddresses, esriFolderType.esriFolderCustomerLayers);
 
tableData = new TableData();
tableData.RecordSet = customerRecordSetResult.RecordSet;
geocodeData = new GeocodeData();
geocodeData.Table = tableData;
 
// ========= STEP 4: Geocode the record set with customers
 
geocodeParameters = new CustomerStoreSetupByGeocodeTableParameters();
 
// Set specific analysis parameters
geocodeParameters.GeocodeCustomers = true;
geocodeParameters.GeocodeData = geocodeData;
geocodeParameters.LinkField = "STORE_ID";
geocodeParameters.NameField = "NAME";
 
// Set other parameters
imageOptions = null;
outputOptions = new TaskOutputType[] { TaskOutputType.GetFeatureClass };
outputLayer = null;
 
TaskResultOutput customerGeocodeResult =
    baServerHelper.CustomerStoreSetupByGeocodeTable(geocodeParameters, imageOptions, outputOptions, outputLayer);
 
PointLayer customerLayer = new PointLayer();
customerLayer.RecordSet = customerGeocodeResult.RecordSet;
 
// ========= STEP 5: Execute the analysis
 
DistanceDecayParameters parameters = new DistanceDecayParameters();
 
// Set specific analysis parameters
parameters.CreateDetailedBorder = true;
parameters.CustomerLinkField = "STORE_ID";
parameters.Customers = customerLayer;
parameters.DecayAreasType = esriDecayAreaType.esriDecayAreaTypeRings;
parameters.DistanceUnits = esriBADriveTimeUnits.esriMiles;
parameters.Radii = new double[] { 1, 3, 5, 7, 9 };
parameters.StoreIDField = "STORE_ID";
parameters.Stores = storeLayer;
parameters.TotalMarketCountField = "TOTHH_CY";
parameters.UseGeographyLevel = true;
 
// Set report options
ReportOptions reportOptions = new ReportOptions();
reportOptions.ReportFormat = "PDF";
reportOptions.ReportHeader = new KeyValue[1];
reportOptions.ReportHeader[0] = new KeyValue();
reportOptions.ReportHeader[0].Key = "subtitle";
reportOptions.ReportHeader[0].Value = "Distance Decay Report for two stores";
parameters.StandardReportOptions = reportOptions;
 
// Set other parameters
imageOptions = null;
outputOptions = new TaskOutputType[] { TaskOutputType.GetFeatureClass, TaskOutputType.GetReport };
outputLayer = null;
outputReport = null;
 
TaskResultOutput result = baServerHelper.DistanceDecay(parameters, imageOptions, outputOptions, outputLayer, outputReport);
 
string reportURL = result.Reports[0].ReportURL;

See Also